前缘盆地砂岩孔隙度预测的一种新途经─—孔隙度与深度关系多数学模型选择法

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A NEW APPROACH TO THE POROSITY PREDICTION IN THE SANDSTONES OF FRONTIER OIL/GAS BASINS

摘要: 含油气盆地地下砂岩储层物性的分布规律,是沉积和成岩作用等各种地质因素综合作用的结果.在钻井较少的前缘盆地,利用多种数学模型选择法,建立研究区目的层段砂岩孔隙度随深度变化的最佳数学模型,进而预测储层物性的空间变化.本文以TM盆地为例,简述该方法的可行性.
- 沉积作用 /
- 成岩作用 /
- 孔隙度 /
- 数学模型 /
- 前缘盆地
Abstract: The distributive regularity of porosity in subsurface sandstones is resulted from theintegrated geological process,such as deposition and diagenesis,The optimization of mathematic models is set up based on the varius mathematical models combined with thevariation of the porosity of sandstone beds in different depths since the drilling wells in the frontier basins are not sufficient.There fore,it is a new approach to predict the vatiation of reservoir pores in distribution with an example of north area in MT Basin.

[1]	Cherer MS. Parameters Influencing Porosity in Sandstones:A. Model for Sandstone Porosity Prediction. AAPG.1987.71(5)
[2]	Block S et al. Porosity Prediction,Prior to Drilling,in Sandstones'of the Kekituk Formation(Mississippian),North Slope of Alaska.AAPG.1990.74(9)
[3]	Wilson JC et al. Compaction and Porosity Evolution of Pliocene Sandstones,Ventura Basin,California. AAPG.1988.72(6)
[4]	Block S. Emprical Prediction of Porosity and Permeability in Sandstones.AAPG. 1991.75(7)